Cleaning device for type-writing machines



(No Model.)

0. COHN.

CLEANING DEVICE FOR TYPE WRITING MACHINES.

Patented June 17, 1890.

UNITED STATES PATENT OFFICE.

OSCAR COI-IN, OF BROOKLYN, NEW YORK.

CLEANING DEVICE FOR TYPE-WRITING MACHINES.

SPECIFICATION forming part of Letters Patent No. 430,469, dated June 17, 1890.

Application filed March 26, 1890.

To all whom it may concern:

Be it known that I, OSCAR OOHN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Cleaning Devices for TypelVriting Machines, of which the following is a specification.

My invention relates to cleaning devices for type-writing machines; and it consists in a novel construction and arrangement of the devices, as hereinafter fully set forth and claimed.

In the drawings, Figure l is a sectional perspective view of a type-writer frame, showing my invention applied thereto; Fig. 2, a vertical sectional view through the cleaning-brush, and Fig. 3 a diagrammatic view illustrating the direction of travel and rotation of the brush.

A indicates a bar, preferably angular in cross-section, to which is secured at a point between its ends a frame or yoke B, carrying the brush or equivalent cleaning device C. The bar A is supported at its opposite ends by brackets D E, secured, respectively, to theopposite sides of the frame of the machine, said brackets being each provided with an eye to receive the rod, and with set-screws a, by which the brackets are clamped in position upon the machine. The bracket E has an upwardly-extending arm I), which is perforated and threaded so as toform in effect a nut, and passing through this nut or threaded arm is a shaft F, having a threaded portion 0 to engage the nut, and a winch or handle d. The shaft is journaled at its inner end in the frame B, and is provided with a beveled gearwheel e, which is designed to mesh with a similar gear f, secu red to an upright shaft g, journaled in the frame B. The shaft 9 is provided above the frame D with a pin it, which is designed to enter a slot formed across the bottom or lower face of the hub t' of the wheel or cleaning device 0, while the upper end of said shaft enters an opening extending axially through the hub. As the shaft F is rotated in one direction its threaded portion 0 will engage the threaded opening formed in the arm or nut d and move said shaft longitudinally in one direction, and when the direction Serial No. 345,332. (No model.)

of rotation of the shaft is reversed the said shaft will be moved longitudinally in the opposite direction. Inasmuch, however, as the shaft F is prevented from moving longitudinally through the frame B it will carry said threaded portion 0 of the shaft, and will be guided in its movement by means of the bar or rod A, to which said frame is secured. It will also be seen that as the frame B is thus moved backward and forward the brush will, by means of gears e and f, be rotated in. one or the other direction, according to the direction of rotation of the shaft.

The present invention is designed more particularly for use upon that class of machines in which type-bars or levers are arranged concentrically aboutan opening formed in the top plate, and the brush is made of such width or of such diameter that in its travel back and forth it will act upon the type of the bars on opposite sides of said central opening, as is clearly indicated in the diagrammatic view in Fig. 3. I do not wish to he understood, however, as limiting myself to the application of the devices herein shown and described to this particular machine, as it is obvious that it may be used upon other styles. After the type have been cleaned it is only necessary to lift the brush 0 vertically and remove it from the shaft g, when the machine is ready for use, the shaft being of such height as not to interferewith the action of the keys of the type-bars or levers. If, however, it is desired to remove the device entirely from the machine it is only necessary to release the brackets D and E.

In Fig. 2 I have shown the nut b as supported by a spring Z), which latter will, when the threaded portion 0 of the shaft passes from within the nut, raise the nut slightly so as to support the shaft, instead of allowing the shaft to be supported only at one end in the frame B. In lieu of this, or in addition thereto, I may support the shaft at a point between its ends by a bracket 0 (shown in dotted lines in Fig. 1;) but I believe that the construction shown in full lines in Fig. 1 will answer well for all practical purposes.

Having thus described my invention, what I claim is 1. In a cleaning attachment for type-writing machines, the combination, with the horizontally-moving frame provided with a brush, of a shaft and intermediate connections, substantially such as is shown and des cribechfor imparting a longitudinal movement to the frame and a rotary motion to the brush carried by the frame.

2. In a cleaning attachment for type-writing machines, the combination, with brackets or supports I) E, of a horizontally-movi11g rod or bar A, provided with a frame B, a cleaning wheel or brush 0 journaled in the frame, and means, substantially such as shown, for imparting a longitudinal movement to the frame and bar and a rotary motion to the brush or cleaning device.

3. In a cleaning device for type-writing machines, the combination, with the brackets I) and E, of the bar or rod A provided with a frame and with a cleaning device, a shaft F adapted to impart rotary motion to the brush, and provided also with a threaded portion to engage a corrcspondingly-threaded lug on one of the brackets, all substantially as shown and described.

4. In a cleaning device for t-ype-Writin g machines, the combination, with the detachable and removable brackets D and E, of the sli'ding bar A, provided with a frame B and brush or-equivalent cleaning devices C, and means, substantially such as shown, for imparting a rotary motion to the brush and a longitudinal movement to the frame in which said brush is journaled.

5. In a cleaning device for type-writing machines, the combination, with the brackets D E, one of which is provided with a threaded lug I), of a rod A, provided with a frame B, a shaft F, provided with a threaded portion 0 and with a beveled pinion e, a shaft gjonrnaled in the frame B, and provided with a beveled pinionf, and a brush or equivalent cleaning device 0, secured to the upper end of the shaft g, all substantially as shown.

6. In a cleaning device for type-writing machines, the combination, with a horizontallymovable frame 13,.and means for imparting motion to the same, of a removable brush or cleaning device 0, all arranged substantially as described.

7. In combination with the bracket D, sliding bar A, provided with a frame B, means for imparting motion to the same and rod or bar, an upright shaft g, journaled in the frame 13 and provided with a pin it, and a brush or equivalent device 0, having a notched hub 2', all substantially as shown.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

OSCAR COI-IN.

Witnesses:

AUGUSTUS G. MAHLER, ERNEST KIES. 

